environment

Carbon pollution has fuelled ‘massive expansion’ of marine heatwaves in Europe, study finds

Hottest periods this year in most sea regions would have been ‘virtually impossible’ in a preindustrial climate

Carbon pollution has fuelled ‘massive expansion’ of marine heatwaves in Europe, study finds

TL;DR

  • Marine heatwaves in Europe have seen a "massive expansion" this summer, fueled by carbon pollution.
  • Some European waters recorded temperatures 6C higher than normal, with these extreme heat events being "virtually impossible" in a preindustrial climate.
  • Climate breakdown is responsible for about two-thirds of the excess heat in affected waters.
  • Hot seas can cause the death of habitat-forming species, disrupt ecosystems, and lead to large-scale mortality of fish and seabirds.
  • Marine heatwaves can also raise dangerous overnight temperatures in coastal regions.
  • The study's findings are particularly concerning given Europe's position as the fastest-warming continent.
  • Experts urge an end to fossil fuel expansion, stating that new oil and gas projects lock in more warming and push ecosystems towards irreversible limits.